Mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the following questions.

Câu hỏi

What Kelvin doing? – He __ at my desk.

A. do – does

B. is – sits

C. does – sits

D. is – is sitting

Đáp án
D. is – is sitting

Câu hỏi thuộc Bài tập:

What ____Kelvin doing? – He ______ at my desk.